I have tried to run the Beyond The Mainline mod (Author= Pixelfck; Last updated on Xelerus 6/30/2014) on Transcendence 1.7 and keep receiving the following error message:
ModHuari.xml: Line(11): Invalid entity: smHuariSpace
If someone could please tell me how to add in a definition for this entity, I would be happy to contact Pixelfck and get his permission to do so, and then do it myself and re-upload the now-functional-with 1.7-mod;
Any help will be most appreciated;

--Tachyonfang
Front Desk Clerk and Head of Technical Support at The Alcazar Hotel, Freelance Genius (IQ 163), and Chief Orchestrator of Various Plots For Universal Domination
"I don't get it-why can't I just shoot them? I mean, after all, they ARE the evil dudes shooting at us!"

Sounds like similar to the Directors Cut. You get this when Elysium is fixed in that mod and I don't think BTM uses Elysium so the game goes straight to the next error.

I'm not sure of your modding knowledge level but as a quick fix try copying the module 1.7Additions.xml from DirectorsCut 1.7, which I attached to your other post, into BTM. You will also need to add it as a module to the BTM main file. That might work. Also check the changelog in DC 1.7 as this might help you sort it out. I'll have a go at BTM over the weekend and (hopefully) attach a working version in a couple of days.

This lets the game start. I jumped to Huaramarca with no problems so good luck. I have had multiple crashes entering St Kats with this mod (with earlier game versions) but a GodMod "Travel Entire Galaxy" run worked OK.

I've attached a copy of ModHuari.xml with the necessary code removed. Open the Extensions folder until you see a file called ModHuari.xml and then copy this one over the top of it. You can't have both files in that folder; you need to replace the original one, and it must be called ModHuari.xml.

pixelfck is still around so any info on this would be useful for updating

Interestingly, pixelfck has already copied the Huari system and station UNID code into this mod, as was required in Director's Cut. And when I removed these the mod started giving the undefined errors. Same problem in different mods.

I have tried to run the Beyond The Mainline mod (Author= Pixelfck; Last updated on Xelerus 6/30/2014) on Transcendence 1.7 and keep receiving the following error message:
ModHuari.xml: Line(11): Invalid entity: smHuariSpace
If someone could please tell me how to add in a definition for this entity, I would be happy to contact Pixelfck and get his permission to do so, and then do it myself and re-upload the now-functional-with 1.7-mod;
Any help will be most appreciated;